Finding the Fourth Proportional to 13,571.72, 18,730.18 and 7,603.35

Step by Step Solution

1. Step 1: Write the proportion equation
   13,571.72 : 18,730.18 = 7,603.35 : x
2. Step 2: Convert to fraction form
   13,571.72/18,730.18 = 7,603.35/x
3. Step 3: Cross multiply
   13,571.72x = 18,730.18 × 7,603.35
4. Step 4: Simplify right side
   13,571.72x = 142,412,114.10
5. Step 5: Solve for x
   x = 142,412,114.10/13,571.72
6. Step 6: Final answer
   x = 10,493.30